the driver letter column is empty, this command works perfectly on ws2019.
the problem is only with ws2022
PS C:\> Mount-VHD C:\10.0.20348.350.vhdx -Passthru | Get-Disk | Get-Partition | Get-Volume
DriveLetter FriendlyName FileSystemType DriveType HealthStatus OperationalStatus SizeRemaining Size
10.0.20348.1 NTFS Fixed Healthy OK 100.86 GB 126.4 GB
NTFS Fixed Healthy OK 85.41 MB 494 MB
FAT32 Fixed Healthy OK 67.26 MB 96 MB